package com.briup.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.briup.reggie.common.R;
import com.briup.reggie.entity.User;
import com.briup.reggie.service.UserService;
import com.briup.reggie.util.AliyunSmsUtil;
import com.briup.reggie.util.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)){
            //生成随机验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            //调用阿里云提供的短信服务API完成发送短信
            AliyunSmsUtil.sendMsg("瑞吉外卖", "SMS_475155079", phone, code);

            //需要将生成的验证码保存到Session
            //session.setAttribute(phone,code);

            //将生成的验证码缓存到redis当中，并且设置有效期为五分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            log.info("短信验证码：{}",code);
            return R.success("短信发送成功");
        }
        return R.error("短信发送失败");
    }

    /**
     * 退出功能
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request) {
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }

    /**
     * 移动端客户登录
     * @param map
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis当中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //验证码比对
        if (codeInSession!=null && codeInSession.equals(code)) {
            //如果验证码比对成功，说明登录成功
            //判断当前手机号对应的用户是否为新用户，如果是新用户自动完成注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if (user==null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //如果用户登陆成功，删除redis中缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("登录失败");
    }

}
